Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various types of check valves used in a wide variety of applications. Check valves are often part of common household items. Although they are available in a wide range of sizes and costs, check valves generally are very small, simple, or inexpensive. Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem. The bodies (external shells) of most check valves are made of plastic or metal.
Mpa: High Pressure
Nominal Diameter：1.5"- 60" (DN40 - DN1500)
Working Temperature：Normal Temperature
Material: Carbon steel, Stainless steel, Alloy steel, Bronze
Applicable Medium：Corrosive Medium, Oil, Other, Steam, Water
Type: Direct Connection
Driving Mode: Automatic
Sealing Form: Flexible Seal
1. Design and manufacture of product according to American state standard ANSI B16.34, American petroleum institute standard API6D.
2. Small opening pressure, the disc can be opened fully with a very small pressure differential.
3. Rocker and hinge pin use inside-set design, reduces outer leakage point.
4. The body and bonnet of class 1500 - Class 900 check valve is connected with stud. And the body and bonnet of class 1500 - class 2500 check valve pressure seat structure to make product bulk small, weight light, seal credible.
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